My Inquiry
My Account
Texas Instruments TLV8542DR
- Part No.:
- TLV8542DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV8542DR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:29,055
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV8542DR from Texas Instruments is a dual-channel, nanopower, rail-to-rail input/output operational amplifier designed for ultra-low-power sensing front-ends in battery-operated systems. It delivers 500 nA per channel quiescent current, 3.1 mV maximum offset voltage, and 8 kHz gain-bandwidth product across –40°C to +125°C, enabling long-life motion detection in PIR-based security nodes.
For engineers reviewing the TLV8542DR datasheet, TLV8542DR pinout, TLV8542DR application, or TLV8542DR equivalent, key selection criteria include its femtoampere input bias current (100 fA), 1.7–3.6 V single-supply operation, EMI-hardened architecture, and SOIC-8 package compatibility with space-constrained IoT sensor nodes.
Technical Context
The TLV8542DR uses a complementary CMOS input stage-N-channel and P-channel differential pairs-to achieve rail-to-rail input operation across its full supply range. Its transition region (≈400 mV near V+) introduces measurable degradation in PSRR and CMRR, requiring careful common-mode voltage planning in precision buffer designs.
Internally compensated for unity-gain stability, the device exhibits 8 kHz GBP with 3.5–4.5 V/ms slew rate and 20 mV rail-to-rail output swing at 3.3 V. Input voltage noise is 8.6 µVP–P (0.1–10 Hz) and 264 nV/√Hz at 1 kHz, supporting high-impedance transimpedance configurations with >1 MΩ feedback resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 550–640 nA per channel at 3.3 V - enables multi-year operation on CR2032 coin cells in always-on PIR detectors. |
| Input Offset Voltage | Max 3.1 mV at VCM = V– - ensures <1% error in 300-mV signal conditioning paths without trimming. |
| Offset Drift | 0.8 µV/°C - maintains sub-µV/°C thermal stability critical for uncalibrated gas or smoke detector analog front-ends. |
| Gain Bandwidth | 8 kHz - supports low-frequency sensor amplification (e.g., PIR, thermistor, electrochemical cell outputs) without instability. |
| Input Bias Current | 100 fA - minimizes IBR error in megaohm-range TIA circuits used in ionization smoke alarms and glucose sensors. |
| Common-Mode Range | Rail-to-rail (V– to V+) - allows direct interfacing with single-ended sensors operating near supply rails. |
| Output Swing | Within 12 mV of rails at 3.3 V - preserves >99% dynamic range in 1.8–3.3 V battery-powered systems. |
Pinout & Package
TLV8542DR is packaged in an 8-pin SOIC (D package) with 4.9 mm × 3.90 mm body size and standard lead pitch. The package supports automated optical inspection and reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Channel A output - drives downstream ADC input or comparator threshold with rail-to-rail swing. |
| 2 | –IN A | Channel A inverting input - connects to feedback network in inverting amplifier or transimpedance configuration. |
| 3 | +IN A | Channel A non-inverting input - interfaces directly with high-impedance PIR sensor output or reference voltage divider. |
| 4 | V– | Negative power supply - must be connected to system ground or lowest potential; shared by both channels. |
| 5 | +IN B | Channel B non-inverting input - enables dual-sensor monitoring (e.g., PIR + temperature) without external multiplexing. |
| 6 | –IN B | Channel B inverting input - supports independent gain-setting for second analog channel. |
| 7 | OUT B | Channel B output - provides isolated signal path for secondary sensor or diagnostic monitoring function. |
| 8 | V+ | Positive power supply - accepts 1.7–3.6 V; decoupling capacitor required within 1 cm for EMI immunity. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened architecture | Reduces RF susceptibility from mobile/WiFi sources - eliminates need for external filtering in consumer-grade IoT enclosures. |
| Ultra-low input bias current | 100 fA enables stable operation with >10 MΩ source impedances - critical for electrochemical gas sensors and photodiode TIAs. |
| Extended temperature range | Specified from –40°C to +125°C - supports deployment in unregulated environments like HVAC ducts or outdoor thermostats. |
| Low-voltage rail-to-rail output | Swings within 12 mV of rails at 3.3 V - maximizes usable ADC code range in 10-bit+ microcontroller systems. |
| Unity-gain stable design | No external compensation required - simplifies layout and reduces BOM count in cost-sensitive motion detector PCBs. |
Applications
| PIR Motion Detection | Gas Sensing Front-End |
|---|---|
|
Use Scenario: Battery-powered wireless security node detecting human movement via pyroelectric infrared sensor. IC Role / Device Role / Timing Role: Dual-channel amplifier: Channel A buffers PIR output; Channel B conditions reference or ambient temperature for drift compensation. Use Value: 500-nA quiescent current extends CR2032 battery life beyond 5 years; rail-to-rail I/O maintains SNR across full battery discharge curve. |
Use Scenario: Portable CO or methane detector using electrochemical or metal-oxide semiconductor sensor. IC Role / Device Role / Timing Role: Transimpedance amplifier converting pA-level sensor current into measurable voltage with minimal IBR error. Use Value: 100-fA input bias current prevents baseline shift in high-resistance sensor elements; 0.8 µV/°C drift avoids recalibration in field-deployed units. |
| Ionization Smoke Alarm | Glucose Monitoring System |
|
Use Scenario: UL-listed residential smoke alarm powered by 9-V alkaline battery with 10-year shelf life. IC Role / Device Role / Timing Role: Low-noise amplifier for ionization chamber current measurement, rejecting EMI from household switching supplies. Use Value: EMI-hardened design eliminates false alarms triggered by nearby LED drivers or dimmers; 8.6 µVP–P noise enables reliable detection of sub-picoampere smoke currents. |
Use Scenario: Disposable blood glucose meter using amperometric enzyme electrode with disposable test strip. IC Role / Device Role / Timing Role: Precision current-to-voltage converter measuring nanoampere-level reaction current from glucose oxidase activity. Use Value: 3.1-mV max VOS ensures <2% measurement error at 100 mg/dL without factory calibration; 1.7–3.6 V operation matches single-cell Li-ion or alkaline supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPV812DR | Lower offset (0.3 mV max) but higher IQ (425 nA/channel); wider supply (1.6–5.5 V) | Better DC accuracy for medical-grade glucose meters; less suitable for ultra-long-life coin-cell use | Choose LPV812DR when offset-critical calibration-free operation outweighs battery life requirements. |
| TLV8802IDR | Lower IQ (320 nA/channel) but higher VOS (4.5 mV max); same 1.7–5.5 V range | Superior battery life in remote environmental sensors; reduced DC accuracy limits use in safety-critical smoke alarms | Choose TLV8802IDR when maximizing runtime in low-duty-cycle wireless nodes is primary. |
Compared with LPV812DR and TLV8802IDR, TLV8542DR offers the optimal balance of ultra-low power, industry-standard SOIC-8 footprint, and robust EMI performance - making it the preferred choice for certified PIR motion detectors and portable gas analyzers where reliability and regulatory compliance are mandatory.
Availability
TLV8542DR is available at Aetrix Electronics and suitable for motion detection, gas sensing, and portable medical equipment requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TLV8542DR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 50 years of innovation in precision amplifiers and low-power signal chains.
The TLV8542DR belongs to TI's nanopower op amp family, engineered specifically for cost-optimized, battery-constrained sensing applications including PIR motion detectors, smoke alarms, and portable diagnostics - prioritizing longevity, EMI resilience, and ease of integration.
FAQ
What is the maximum operating temperature for TLV8542DR?
The TLV8542DR is fully specified from –40°C to +125°C ambient temperature. This extended range is validated across all electrical parameters in the datasheet, enabling use in automotive cabin modules, HVAC systems, and outdoor industrial sensors without derating.
Does TLV8542DR support rail-to-rail input and output simultaneously?
Yes, TLV8542DR supports rail-to-rail input (V– to V+) and rail-to-rail output (within 12 mV of rails at 3.3 V). However, input operation within the 400-mV transition region near V+ degrades PSRR and CMRR - design best practice is to keep common-mode voltage below V+ – 1.2 V for highest precision.
Can TLV8542DR drive capacitive loads directly?
TLV8542DR is unity-gain stable but becomes unstable with capacitive loads >50 pF. For such cases, TI recommends adding a series isolation resistor (RISO) between the output and load. Typical values range from 10 Ω to 50 kΩ depending on CL and required bandwidth - see Figure 31 in the TLV8542DR datasheet.
Is TLV8542DR pin-compatible with other dual op amps in SOIC-8?
No - TLV8542DR has a nonstandard pinout optimized for dual-channel independence: pins 1/7 are outputs, pins 2/6 are inverting inputs, pins 3/5 are non-inverting inputs, and pins 4/8 are supplies. It is not pin-compatible with generic dual op amps like LM358 or TLV2372; board layout must follow the TLV8542DR-specific pin mapping.
What packaging options exist for TLV8542DR besides SOIC-8?
TLV8542DR is exclusively offered in the 8-pin SOIC (D) package per TI's orderable addendum. While the TLV8542 family also includes an X2QFN-8 variant (RUG), that part number is TLV8542RUGR - TLV8542DR refers only to the SOIC-8 version and carries no alternate package variants.
TLV8542DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.0045V/µs
- Gain Bandwidth Product:
- 8 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 3.4 mV
- Current - Supply:
- 550nA (x2 Channels)
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 3.6 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV8542DR FAQ
1.How can I place an order for TLV8542DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV8542DR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLV8542DR reliable?
The price and inventory of TLV8542DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV8542DR is usually 5 days.
3.What payment methods are accepted for TLV8542DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV8542DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV8542DR?
TLV8542DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV8542DR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLV8542DR?
For technical support, including TLV8542DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV8542DR requirements.
6.How does Aetrix verify that TLV8542DR is sourced from the original manufacturer or authorized distributors?
All TLV8542DR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLV8542DR meets industry standards.
7.What is the process for return or replacement of TLV8542DR?
All TLV8542DR units undergo pre-shipment inspection (PSI). If there is an issue with TLV8542DR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLV8542DR part is unused and in its original packaging.
Return procedure for TLV8542DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV8542DR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
